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  • AWR报告的使用

    [oracle@localhost admin]$ pwd
    /home/oracle/oracle/product/10.2.0/db_1/rdbms/admin
    [oracle@localhost admin]$ sqlplus sys/lubinsu as sysdba

    SQL*Plus: Release 10.2.0.1.0 - Production on Sun May 19 15:12:52 2013

    Copyright (c) 1982, 2005, Oracle.  All rights reserved.


    Connected to:
    Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
    With the Partitioning, OLAP and Data Mining options

    SQL> @/home/oracle/oracle/product/10.2.0/db_1/rdbms/admin/awrrpt.sql

    Current Instance
    ~~~~~~~~~~~~~~~~

       DB Id    DB Name      Inst Num Instance
    ----------- ------------ -------- ------------
     1326384392 ORCL                1 orclsid


    Specify the Report Type
    ~~~~~~~~~~~~~~~~~~~~~~~
    Would you like an HTML report, or a plain text report?
    Enter 'html' for an HTML report, or 'text' for plain text
    Defaults to 'html'
    Enter value for report_type: html(也是缺省值)
    Type Specified:  html


    Instances in this Workload Repository schema
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

       DB Id     Inst Num DB Name      Instance     Host
    ------------ -------- ------------ ------------ ------------
    * 1326384392        1 ORCL         orclsid      localhost.lo
                                                    caldomain

    Using 1326384392 for database Id
    Using          1 for instance number


    Specify the number of days of snapshots to choose from
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Entering the number of days (n) will result in the most recent
    (n) days of snapshots being listed.  Pressing <return> without
    specifying a number lists all completed snapshots.


    Enter value for num_days: 2

    Listing the last 2 days of Completed Snapshots

                                                            Snap
    Instance     DB Name        Snap Id    Snap Started    Level
    ------------ ------------ --------- ------------------ -----
    orclsid      ORCL               220 19 May 2013 10:18      1
                                    221 19 May 2013 11:00      1
                                    222 19 May 2013 11:42      1
                                    223 19 May 2013 12:00      1
                                    224 19 May 2013 12:30      1
                                    225 19 May 2013 13:00      1
                                    226 19 May 2013 13:30      1
                                    227 19 May 2013 14:00      1
                                    228 19 May 2013 14:30      1
                                    229 19 May 2013 15:00      1



    Specify the Begin and End Snapshot Ids
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Enter value for begin_snap: 228
    Begin Snapshot Id specified: 228

    Enter value for end_snap: 229
    End   Snapshot Id specified: 229



    Specify the Report Name
    ~~~~~~~~~~~~~~~~~~~~~~~
    The default report file name is awrrpt_1_228_229.html.  To use this name,
    press <return> to continue, otherwise enter an alternative.

    可以设置文件名,报告分析之后:我们可以在浏览器中查看报告(这里列出了数据库的整体运行情况,执行时间长的前几条SQL,参数文件,等等,注意AWR只是一个报告,并不会帮助我们分析该如何优化,在后面的ADDM报告则会为我们提供优化的建议):


    --======================================================================
    另外有一种addm报告会帮助我们分析,并且提供必要的调优建议:

    SQL> @/home/oracle/oracle/product/10.2.0/db_1/rdbms/admin/addmrpt.sql

    Current Instance
    ~~~~~~~~~~~~~~~~

       DB Id    DB Name      Inst Num Instance
    ----------- ------------ -------- ------------
     1326384392 ORCL                1 orclsid


    Instances in this Workload Repository schema
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

       DB Id     Inst Num DB Name      Instance     Host
    ------------ -------- ------------ ------------ ------------
    * 1326384392        1 ORCL         orclsid      localhost.lo
                                                    caldomain

    Using 1326384392 for database Id
    Using          1 for instance number


    Specify the number of days of snapshots to choose from
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Entering the number of days (n) will result in the most recent
    (n) days of snapshots being listed.  Pressing <return> without
    specifying a number lists all completed snapshots.



    Listing the last 3 days of Completed Snapshots

                                                            Snap
    Instance     DB Name        Snap Id    Snap Started    Level
    ------------ ------------ --------- ------------------ -----
    orclsid      ORCL               220 19 May 2013 10:18      1
                                    221 19 May 2013 11:00      1
                                    222 19 May 2013 11:42      1
                                    223 19 May 2013 12:00      1
                                    224 19 May 2013 12:30      1
                                    225 19 May 2013 13:00      1
                                    226 19 May 2013 13:30      1
                                    227 19 May 2013 14:00      1
                                    228 19 May 2013 14:30      1
                                    229 19 May 2013 15:00      1
                                    230 19 May 2013 15:31      1



    Specify the Begin and End Snapshot Ids
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Enter value for begin_snap: 228

    Enter value for end_snap: 229
    End   Snapshot Id specified: 229



    Specify the Report Name
    ~~~~~~~~~~~~~~~~~~~~~~~
    The default report file name is addmrpt_1_228_229.txt.  To use this name,
    press <return> to continue, otherwise enter an alternative.

    Enter value for report_name: 可以使用默认文件名
    DETAILED ADDM REPORT FOR TASK 'TASK_1814' WITH ID 1814
              ------------------------------------------------------

                  Analysis Period: 19-MAY-2013 from 13:30:50 to 14:00:57
             Database ID/Instance: 1326384392/1
          Database/Instance Names: ORCL/orclsid
                        Host Name: localhost.localdomain
                 Database Version: 10.2.0.1.0
                   Snapshot Range: from 226 to 227
                    Database Time: 11 seconds
            Average Database Load: 0 active sessions

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    THERE WAS NOT ENOUGH DATABASE TIME FOR ADDM ANALYSIS.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

              ADDITIONAL INFORMATION
              ----------------------

    There was no significant database activity to run the ADDM.

    The database's maintenance windows were active during 99% of the analysis
    period.

    The analysis of I/O performance is based on the default assumption that the
    average read time for one database block is 10000 micro-seconds.

    An explanation of the terminology used in this report is available when you
    run the report with the 'ALL' level of detail.

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  • 原文地址:https://www.cnblogs.com/javawebsoa/p/3100655.html
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